Home / 21,630,843.46-29,818,761.69-16,465,207.78

Finding the Fourth Proportional to 21,630,843.46, 29,818,761.69 and 16,465,207.78

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Solution

The fourth proportional to 21,630,843.46, 29,818,761.69 and 16,465,207.78 is: 22,697,779.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630,843.46 : 29,818,761.69 = 16,465,207.78 : x
  2. Step 2: Convert to fraction form
    21,630,843.46/29,818,761.69 = 16,465,207.78/x
  3. Step 3: Cross multiply
    21,630,843.46x = 29,818,761.69 × 16,465,207.78
  4. Step 4: Simplify right side
    21,630,843.46x = 490,972,106,968,153.94
  5. Step 5: Solve for x
    x = 490,972,106,968,153.94/21,630,843.46
  6. Step 6: Final answer
    x = 22,697,779.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.